Strain of Resistance to O/129 Phosphate in Vibrio Cholerae non O1 strain Isolated from Patient and Environmental Samples in Guangdong Province

Vibrio Cholerae non O1 strains isolated from patients and environmental samples in Guangdong province during 1986-1994,10.08% and 5.88% were resistant to 10 and 150ug of 2,4 diamino 6,7 dilsopropylpteridine(O/129),respectively,4.20% and 3.36% were mildly sensistive to 10 and 150ug O/129,respectively.The early O/129 resistant strain was isolated from seafood in 1986.Of the 7 resistant to 10 and 150ug O/129 Vibrio cholerae non O1 strains,5 strains were resistant to SMX simultaneously.However,two strains were sensitive to SMX.The results indicated that the laboratory professionals must pay much heed to O/129 sensitivisty test in isolation or identification of Vibrio cholerae.